Home / 403,359,353.40-605,039,030.10-394,401,401.40

Finding the Fourth Proportional to 403,359,353.40, 605,039,030.10 and 394,401,401.40

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Solution

The fourth proportional to 403,359,353.40, 605,039,030.10 and 394,401,401.40 is: 591,602,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,359,353.40 : 605,039,030.10 = 394,401,401.40 : x
  2. Step 2: Convert to fraction form
    403,359,353.40/605,039,030.10 = 394,401,401.40/x
  3. Step 3: Cross multiply
    403,359,353.40x = 605,039,030.10 × 394,401,401.40
  4. Step 4: Simplify right side
    403,359,353.40x = 238,628,241,373,136,768
  5. Step 5: Solve for x
    x = 238,628,241,373,136,768/403,359,353.40
  6. Step 6: Final answer
    x = 591,602,102.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.